Total knee replacement surgery has helped millions of people regain mobility and reduce chronic pain caused by arthritis, injury, or degeneration. However, not every outcome is perfect. While most patients experience years of pain relief, some may find that their new joint doesn’t feel quite right or that symptoms return over time. If your knee replacement isn’t working as expected, understanding the possible causes and next steps is essential.
Recognizing the Signs of a Problem
If your knee feels unstable, painful, stiff, or swollen long after the recovery period, it may be a sign that something isn’t right. Common symptoms of a failing knee replacement include:
- Persistent or worsening pain
- Reduced range of motion
- Clicking, grinding, or instability in the joint
- Visible changes such as swelling or redness
These issues can develop months or even years after surgery, and while some discomfort during healing is normal, ongoing or increasing pain should not be ignored.
Understanding Why Knee Replacements Fail
There are several reasons why a knee replacement might not deliver the expected results. These include:
- Implant Loosening – Over time, the artificial components can shift or detach from the bone, causing pain and instability.
- Infection – Infections around the implant are very uncommon, but they can happen. They can cause swelling and require medical help.
- Misalignment or Poor Fit – If the implant was not positioned correctly, it can create uneven pressure and discomfort.
- Wear and Tear – Like any mechanical part, implants can wear down, particularly for highly active individuals.
Understanding the cause of failure is the first step toward finding the right solution.
Steps to Take if Your Knee Replacement Isn’t Working
- See Your Orthopedic Specialist – They will likely order X-rays, CT scans, or MRIs to determine the problem.
- Get a Second Opinion – In complex cases, consulting another orthopedic surgeon can provide a fresh perspective and alternative options.
- Consider Non-Surgical Options First – Physical therapy, anti-inflammatory medication, and activity modification may help if the issue is minor.
- Explore Revision Surgery – If the implant is severely damaged or infected, replacing it with a new prosthesis may be necessary.
Preparing for Possible Revision Surgery
If revision surgery is recommended, knowing what to expect can ease anxiety. Patients often ask, about replacement of total knee replacement when preparing for a procedure. While the original knee replacement typically takes 1–2 hours, revision surgery can take longer—sometimes 2–4 hours—due to the complexity of removing and replacing the old implant.
Recovery after revision surgery may also be more intensive than after the first operation, requiring a longer rehabilitation period to restore strength and flexibility.
Living Well After Knee Replacement Challenges
Even if your first knee replacement hasn’t gone as planned, it doesn’t mean you can’t regain mobility and comfort. Revision treatments are now more successful than ever thanks to improvements in both surgery methods and implant technology. Many patients go on to live active, fulfilling lives after addressing their knee replacement issues.
To support recovery and protect your new joint:
- Maintain a healthy weight to reduce stress on the knee
- Engage in low-impact activities like swimming or cycling
- Follow your physical therapist’s guidance diligently
- Attend regular check-ups to monitor implant health
The Bottom Line
When a knee replacement isn’t working, it’s important not to suffer in silence. Identifying the problem early and seeking expert advice can open the door to solutions that restore mobility and quality of life. Whether through non-surgical treatments or revision surgery, there are ways to get back on your feet and enjoy a more active future.
